The portion of the bore in a rifled barrel that protrudes into the bore itself.

Length Of Pull

The distance from trigger to the end of the gun's buttstock.

Lever Action

A repeating firearm action operated by a lever beneath the grip.

Long Gun

The term long gun is used to describe classes of firearm with longer barrels than other classes. In small arms, a long gun is designed to be fired braced against the shoulder, in contrast to a handgun. The actual length of the barrels of a long gun are subject various laws in many jurisdictions, for example by the National Firearms Act in the United States, which sets a minimum length of 16 inches (40 cm) for rifle barrels and 18 inches (45 cm) for shotgun barrels. Examples of various classes of small arms generally considered long arms include: rifles, shotguns, muskets, carbines, etc.